Odorless crematory



no Model.) a Shets-Sheat 1.

G. W. LENT.- O'DORLESS OREMATORY.

No. 573,605, Patented Dec. 22, 1896.

(No Model.)

3 Sheets-Sheet 2. 0. W. LENT ODORLESS GREMATOBY.

No, 573,605. Patent-ed Dec. 22, 1896.

a: mums PETERS ca. PH

(No Model.)

0; W. LENT.

ODORLESS GREMATORY.

Patented Dec. 22; 1896,

ri a

3 Shets-8heet q vmewao,

UNITE STATES PATENT OFFICE.

CYRENUS \V. LENT, OF OAKLAND, CALIFORNIA, ASSIGNOR OF THREE- FOURTHS TO THEODORE SWIFT AND LOUIS SCHAFFER, OF SAME PLACE, AND J. SIVIFT, OF SAN FRANCISCO, CALIFORNIA.

ODORLESS CREMATORY.

SPECIFICATION forming part of Letters Patent No. 573,605, dated December 22, 1896.

Application filed December 9, 1895. Serial No. 571,541. (No model.)

To all whom it may concern:

Be it known that I, OYRENUS W. LENT, a citizen of the United States, residing at Oakland, county of Alameda, State of California, have invented an Improvement in Odorless Crematories; and I hereby declare the following to be a full, clear, and exact description of the same.

Hy invention relates to an apparatus for destroying garbage and other material by heat, and at the same time disposing of all noxious fumes arising from the operation, so as to produce what I call an odorless crematory.

It consists in certain details of construction, which will be more fully explained by reference to the accompanying drawings, in which Figure 1 is a general view of my crematory. Fig. 2 is a vertical section through condenser and disinfector. Fig. 3 is a longitudinal vertical section of the furnace and drying compartments. Fig. 4 is a lateral section on line 3 3 of Fig. 3. Fig. 5 is a horizontal section showing the furnace-chamber E and the jettubes for the introduction of petroleum or other liquid hydrocarbon or gas. Fig. 6 is an enlarged sectional view of the combustionchamber S and its attachments. Fig. 7 illustrates a sectional view of the pipes a a afor producing a suction for drawing the vapors out of the chamber U. Fig. 8 is a detail showing a portion of the spray-pipe f.

The furnace A may be of any suitable size and material. In the present case I have illustrated it as a structure about thirty feet in length by ten feet in height and eight feet wide, having near one end the fireplace B with a door-opening C, through which fuel may be introduced, and a bridge-wall D, over which the heated products pass. Behind this again is a suitably-grated floor E, which is designed to receive the material to be destroyed after the latter has been first dried and then delivered upon this grating.

It will be manifest that if it is desired to employ petroleum or other liquid hydrocarbon or gas to produce the heat, gas or hydrocarbon burner jet-tubes may be introduced through the walls of the apparatus, as shown at F, preferably those from opposite sides discharging into the furnace intermediate to each other. 7

Above the grating E is a supplemental inclosed-chamber G, with a floor which is heated by the products of combustion in the furnace proper below. The chamber above this floor is a space of sufficient dimensions to receive garbage and material to be cremated or destroyed, which is introduced through openings H in the top of the furnace.

The furnace, which is built of anysuitable fire-resisting material, is so situated that the carts or wagons bringing the garbage can be driven directly over the top, and the contents discharged through the openings H into the chamber G by simply removing the doors or covers I, which normally close these openings.

Directly in line beneath the openings H are other openings or passages J, having movable doors K, arranged in any suitable manner to temporarily close the openings J and prevent the material from passing directly through into the furnace-chamber. These supply-openings H are situated at suitable and convenient distances apart throughout the length of the furnace, and within the chamber G are vertical gratings L, intermediate between the openings, which serve to prevent the soft garbage from flowing out in either direction too far away from the openings J, through which it is to be eventually delivered into the furnace. the gratings are sufficiently open to allow any vapors to pass through them, and this is assisted by a draft-opening M near the front of the furnace opening into this chamber with a suitable controlling-damper, as \villbe hereinafter described. The material being discharged into the upper chamber G is there dried, and any liquid contained therein will flow by gravitation to one side of the floor G, this floor being slightly inclined for that purpose. Upon the lower side of the floor is a channel or gutter N, into which the liquid At the same time flows, and the gutter is slightly inclined from IOO orize a great portion of this liquid, and any liquid which may reach the rear end will pass out through a discharge-pipe O and be delivered into the vapor-escape pipe P, which leads outwardly from the furnace-chamber, where the vaporization will be complete. The heat in the chamber G will usually be sufficient to vaporize the greater portion of the liquid, and this vapor and that arising from the drying out of the garbage will pass out through a pipe OT, leading from the upper part of the upper chamber into the discharge pipe or passage P.

lVhen the garbage is sufficiently dried to be properly burned, the doors K are opened, and the dried material, falling through them upon the grating or hearth IE, will there be burned, and vapors arising from this combustion pass out through the passage P, uniting with the vapors which are being discharged from the'upper chamber.

Door-openings Q are made through the sides of the furnace above the grating E, and by means of suitable slices or tools the cinders arising from the destruction of the material are broken up, so as to pass through the grating-fl oor and in to the ash-pit beneath, from which it can be withdrawn from time to time through doors or openings R, opening into the sides of the ash-pit.

The passage P is of considerable length, as much as one hundred feet, more or less, as found desirable, and at some point within this passage not far from the furnace is made an enlargement or combustion-chamber S. This chamber maybe of any suitable form and is designed to allow the expansion and more complete combustion of unconsumed gases which have reached that point through confined passages or fines where such combustion cannot effectually occur even if there is plenty of air for the purpose. Beyond this combustion-chamber is an exhaust-fan T or equivalent draft-producing device, connecting with the passage P in such a manner as to produce a strong draft through it, and this draws the products of combustion into the passage and also draws air through the damper M in the front of the upper chamber, and this air being heated helps to dry the material in the upper chamber and passes with the vapors out through the passage 0 and into the discharge-passage P.

U is a receiver, which is made of any suitable form and size. In the upper part of this receiver pipes V are arranged to return upon each other backward and forward from one end to the other. These pipes are perforated at the bottom, and they receive a supply of water through a pipe and cook V. This water passing through the pipes V discharges into the chamber U and condenses the vapors which have arrived in the chamber from the apparatus, as previously described. Any Vapors that are sufficiently condensed in this chamber will pass out through passages Win the lower part and into the condensing-chaming the pipes a are the mushroom or bell shaped caps 0, open at the bottom and having their lower edges just dipping into the surface of the water in the condensingchamber Y. The pipes to connect by means of Ts c with a supply -pipe a through which water is delivered into the vertical downwardly-extending portion of the pipes a, and this produces a draft or suction action, which constantly draws the vapors out of the receiving-chamber U and delivers them into the condensing-chamber Y. These vapors pass down the vertical pipes ato the bottom and beneath the water in the chamber Y and are condensed thereby. Any incondensable smoke or vapors will arise through the Water beneath the bell-shaped attachments c, where they gradually escape around the edges in a purified form with whatever air may have passed into the apparatus by the action of the fan and draft previously described. This air may be discharged in any suitable manner and will be practically freed from all noxious vapors and smells. I have shown the pipe I) so arranged as to discharge both air and liquid into a final disinfecting-chamber (Z, having spray-pipes f, an air-discharge pipe 6, and an overflow g; but the number of chambers following the condenser will depend upon the perfection of the condensation and the necessity for depriving the escaping products of noxious qualities.

The pipe 6 is here shown extended back to the furnace, into'which it discharges any uncondensed or noxious vapors, to be again passed through the furnace, where they will be destroyed or rendered innocuous. This also adds to the draft through the furnace proper.

Having thus described my invention, what I claim as new, and desire to secure byLette-rs Patent, is

1. A crematory consisting of an inclosed furnace adapted to burn the material, a superposed closed drying-chamber having feedopenings at the top with controlling-doors, coincident openings beneath the feed-openings leading from the drying to the furnace chamber with doors whereby communication between the two is controlled, a transverselyinclined floor extending from one side to the other of the drying-chamber and a longitudinal channel or channels at the lower side of the floor to receive unvaporized liquid contained in the material delivered into the drying-chamber, a pipe with which the channel connects and a main discharge-passage from the furnace and drying chamber into which the pipe also leads.

2. A crematory-furnace consisting of an inclosed furnace-chamber having a grated floor, means for applying heat therein for the destruction of its contents, door-controlled openings at the sides for the introduction of implements to break up and discharge the burnt mass through the grated floor, a receiving-pit beneath with similar openings for the removal of the clinker after it falls through the grate, a closed drying-chamber situated above the furnace-chamber having door-controlled openings for the introduction of the material to be treated, vertical grated diaphragms fixed at intervals in the length of the drying-chamber to limit the spread of the material, a draft-opening for the introduction of air at one end of said chamber, and a discharge-passage at the opposite end for the delivery of vapors, and door-controlled openings in the floor of the chamber through which the material is delivered by gravitation into the furnace after being dried.

3. A cremating apparatus consisting of an inclosed furnace, with means for applying heat for the destructive distillation of its contents, a grated fioor and door-openings for the agitation and discharge of the burnt material, a superposed inclosed drying-chamber with receiving and discharge openings, and an air-inlet passage and valve at one end, a discharge-pipe leading from the furnace to a condenser, an inclined floor with channel for the collection of the liquid portions of the material delivered into the drying-chamber,

said channel connecting with the dischargepassage from the furnace, a second dischargepassage from the upper part of the dryingchamber for the conduction of vapors therefrom to the main discharge-pipe, an enlarged combustion chamber situated within the length of said pipe, and a draft apparatus whereby the vapors are drawn from both furnace and drying chamber and delivered into the condenser.

4. A cremating apparatus consisting of a furnace-chamber, a superposed drying-chamber with doors whereby access may be ob-.

pipe and delivered thence into a condenser,

a condenser within which the vapors are condensed and a disinfecting-chamber into which the uncondensed vapors and products of condensation are delivered from the condenser.

In witness whereof I have hereunto set my hand.

OYRENUS W. LENT.

\Vitnesses:

S. H. NoURsE, JEssIE C. BRODIE. 

